My car lately has been feeling like its going down hill... The acceleration for it "feels" not as smooth, and the turbos seem to be slowing down? Car as 77,500 miles on it...

We've been having 65-70 degree whether... Oil change was done like 1800 miles ago...also got new tires..

during a 0-10 acceleration, I can feel a grinding vibration, but only from those speeds(slow start).. also while going from 1st to 2nd gear on the high way I can feel the shift sort of stick but its smooth....

No CEL lights or any other messages...

Im thinking it's a software issue?

thanks in advance!

 

Maybe also inspect the upper engine mount.